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Diceratias trilobus

  • Fish
  • IUCN: Least concern
  • Usual depth503–1,023 m
  • Water temperature16–29 °C
  • Best monthsFebruary, March, and June
  • How commonRare
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About this species

Diceratias trilobus is a species of deep sea marine ray-finned fish belonging to the family Diceratiidae, the double anglers. The fish is bathypelagic and has been found as deep as 1,216 metres (3,990 ft). It is endemic to the northwest Pacific Ocean. A distinct characteristic of this species of anglerfish is its short illicium and abnormally large esca.

Text from the Wikipedia article “Diceratias trilobus”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 3 records
  • February: 4 records
  • March: 5 records
  • April: 2 records
  • May: 0 records
  • June: 5 records
  • July: 4 records
  • August: 0 records
  • September: 0 records
  • October: 1 records
  • November: 0 records
  • December: 0 records

Depth and water temperature

Depth

Mostly recorded at 503–1,023 m · Deepest record: 1,213.5 m

  • 490–500 m: 2 records
  • 500–510 m: 2 records
  • 510–520 m: 0 records
  • 520–530 m: 4 records
  • 530–540 m: 0 records
  • 540–550 m: 0 records
  • 550–560 m: 2 records
  • 560–570 m: 0 records
  • 570–580 m: 0 records
  • 580–590 m: 0 records
  • 590–600 m: 14 records

Water temperature

Recorded in surface water of 16–29 °C

  • 14–16 °C: 1 records
  • 16–18 °C: 2 records
  • 18–20 °C: 5 records
  • 20–22 °C: 0 records
  • 22–24 °C: 2 records
  • 24–26 °C: 0 records
  • 26–28 °C: 12 records
  • 28–30 °C: 2 records

Names and classification

Names in 1 more languages
Japanese
San-yochochin-anko, サンヨウチョウチンアンコウ

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 24 open-data records from 1975 to 2013.
  • Species data updated November 2, 2026.

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